Add shelf to JetBrains.gitignore

Added Apache NiFi .nar files

Added *.nlo and *.nls extensions to TeX.gitignore

Update Android.gitignore

Added MFractor's working folder to VisualStudio.gitignore

MFractor is a Xamarin/Visual Studio Mac productivity tool used by 1000's of Xamarin developers.

The `.mfractor/` folder should not be included in source control (but often is).

added: *.iobj, *.ipdb

Add a new .msix extension

Microsoft was announced a new extension of installer for Windows. I just added that one to be ignored as default, like others installers files.
References:
https://blogs.windows.com/buildingapps/2018/03/07/three-things-need-know-windows-developer-day/
https://github.com/Microsoft/msix-packaging

Fix the anchor to ignore section

Add the idea caches to gitignore

Ignore .idea/assetWizardSettings.xml for Android Studio 3.1

JetBrains: add .idea/httpRequests

This directory used by HTTP Client in IntelliJ IDEA (and other product).
https://www.jetbrains.com/help/idea/http-client-in-product-code-editor.html#viewingResponse

Add exclude credential master key of Rails 5.2

"These files are produced when Incremental Link-Time Code Generation (LTCG) is enabled."
https://stackoverflow.com/questions/31554559/possible-to-stop-generating-ipdb-iobj-files-by-visual-studio-2015

Improve JetBrains.gitignore styling 

Update Node.gitignore

Update .gitignore with .cpcache

The current clojure deps tool creates .cpcache directory in the project directory while using .deps.edn

remove VS year from comments

Update documentation link cargo.toml vs cargo.lock

Joomla: don't ignore .gitignore

Ignored default sqlite database of Django

Remove unreasonable ignores for Python/Django

Add .nvuser NVidia Nsight configuration file

Add rptproj.rptuser

Add {prod, dev, whatever_enviroment}.secret.exs in Elixir/Phoenix